An ultrasonic sensing probe as a mobility aid for the blind

摘要: Abstract During the past three years a new form of ultrasonic mobility aid has been under development through sponsorship St. Dunstan's: trials with 10 experimental models were carried out during May and June, 1962. The evaluation was undertaken by Applied Psychology Research Unit, Cambridge, in conjunction Department Electrical Engineering, University Birmingham. As result these tests Dunstan's are sponsoring further research an extensive programme training testing is to be started 1965, when number fully engineered aids will available. It not yet certain how valuable device blind people, since psychological factors paramount importance, it only after large public have undergone that clear indication can given. may therefore some 18 months before known who can't derive benefit increased